动态一阶对象的RBF神经网络建模程序

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资源摘要信息:"本资源集包含了一个MATLAB环境下运行的源程序,专门用于对动态一阶系统对象采用径向基函数(Radial Basis Function,简称RBF)神经网络进行建模。通过该资源,用户可以得到一个经过调试的、可以直接运行的程序,以完成从数据准备、网络训练到模型预测的整个建模流程。" 知识点详细说明: 1. 径向基函数(RBF)神经网络 径向基函数神经网络是一种特殊类型的前馈神经网络,常用于分类和回归问题。它使用径向基函数作为激活函数,在多维空间中形成决策面,特别适合于处理非线性关系。RBF网络通常由输入层、隐藏层和输出层组成,其中隐藏层的神经元使用径向基函数作为激活函数。常见的径向基函数包括高斯函数、逆多二次函数等。 2. 神经网络建模 神经网络建模是一种利用神经网络的非线性建模能力来对复杂系统进行建模的方法。通过训练神经网络,可以使其逼近任何复杂函数的输入输出关系。神经网络建模通常涉及以下步骤:数据收集、预处理、网络设计、网络训练、模型验证和预测。在此过程中,需要不断地调整网络参数,如学习率、网络结构和迭代次数等,以获得最佳性能。 3. 动态系统建模 动态系统建模是研究系统随时间变化的行为并建立描述其动态特性的数学模型的过程。对于一阶动态系统,其建模通常涉及到时间常数、延迟等因素,这类系统通常可以用一阶微分方程来描述。在控制工程中,动态系统建模对于设计控制器和预测系统未来状态至关重要。 4. MATLAB环境应用 MATLAB(Matrix Laboratory的缩写)是一种高性能的数值计算和可视化软件,广泛应用于工程计算、数据分析、算法开发等领域。MATLAB提供了一个名为Simulink的交互式图形环境,以及大量的工具箱(Toolbox),支持各种工程计算和建模需求。本资源中的程序就是设计在MATLAB环境下运行的,MATLAB具有强大的矩阵运算能力,适合于神经网络等复杂模型的开发和仿真。 5. 文件清单解释 - DT1RBFnet.m:这是一个MATLAB源文件,包含了利用RBF神经网络对动态一阶系统建模的完整代码。用户可以直接在MATLAB中运行此文件来执行建模工作。 ***.txt:这个文件可能包含了一些附加信息,比如下载链接、作者信息、许可信息或者使用说明等。***是一个提供各种技术资源的网站,该文本文件可能来自于该网站。 通过以上知识点的详细说明,用户可以获得对资源集内文件功能与应用场景的全面理解。此外,用户能够认识到RBF神经网络在动态系统建模中的应用潜力,并学习如何在MATLAB环境下实现相关的建模工作。

select * from (select t1.[id] as t1_id,t1.[requestId] as t1_requestId,t1.[htqsrq] as t1_htqsrq,t1.[htjzrq] as t1_htjzrq,t1.[htbh] as t1_htbh,t1.[gf] as t1_gf,t1.[xf] as t1_xf,t1.[rq] as t1_rq,t1.[fkfs] as t1_fkfs,t1.[formmodeid] as t1_formmodeid,t1.[modedatacreater] as t1_modedatacreater,t1.[modedatacreatertype] as t1_modedatacreatertype,t1.[modedatacreatedate] as t1_modedatacreatedate,t1.[modedatacreatetime] as t1_modedatacreatetime,t1.[modedatamodifier] as t1_modedatamodifier,t1.[modedatamodifydatetime] as t1_modedatamodifydatetime,t1.[form_biz_id] as t1_form_biz_id,t1.[MODEUUID] as t1_MODEUUID,t1.[htfj] as t1_htfj,t1.[zje] as t1_zje,t1.[ds] as t1_ds,t1.[zjedx] as t1_zjedx,t1.[cspp] as t1_cspp,t1.[yfk] as t1_yfk,t1.[gxid] as t1_gxid,t1.[bz] as t1_bz,t1.[gfqymc] as t1_gfqymc,t1.[gfjc] as t1_gfjc,t1.[bh] as t1_bh,t1.[jylx] as t1_jylx,t1.[cght] as t1_cght,t1.[yf] as t1_yf,t1.[yfk1] as t1_yfk1,t1.[yf11] as t1_yf11,t1.[nf] as t1_nf,t1.[rksj] as t1_rksj,t1.[cclx] as t1_cclx,t1.[cgbt] as t1_cgbt,t1.[yfk2] as t1_yfk2,t1.[sywf] as t1_sywf,t1.[yfbl] as t1_yfbl,t1.[fhbl] as t1_fhbl,t1.[yfh] as t1_yfh,t1.[sykf] as t1_sykf,t1.[hzsdlqys] as t1_hzsdlqys,t1.[sys_workflowid] as t1_sys_workflowid,t1.[cgqzyz] as t1_cgqzyz,t1.[htwjpdf] as t1_htwjpdf,t1.[cghtlc] as t1_cghtlc,t1.[htzt] as t1_htzt,t1.[qzfs] as t1_qzfs,t1.[htwjtp] as t1_htwjtp,t1.[cgqzlc] as t1_cgqzlc,t1.[sjfk] as t1_sjfk,t1.[ydkds] as t1_ydkds,t1.[chpt] as t1_chpt,t1.[lxdhchr] as t1_lxdhchr,t1.[gxsjkx] as t1_gxsjkx,t1.[hkzt] as t1_hkzt,t1.[lcfkd] as t1_lcfkd,t1.[fkzlcid] as t1_fkzlcid,t1.[mode_top_4] as t1_mode_top_4,t1.[cgdj] as t1_cgdj,t1.[mode_top_22] as t1_mode_top_22,t2.[id] as t2_id,t2.[mainid] as t2_mainid,t2.[sld] as t2_sld,t2.[ppcj] as t2_ppcj,t2.[hsdj] as t2_hsdj,t2.[bz] as t2_bz,t2.[je] as t2_je,t2.[xhggyt] as t2_xhggyt,t2.[mxgxid] as t2_mxgxid,t2.[dqkckc] as t2_dqkckc,t2.[rkhkc] as t2_rkhkc,t2.[yf] as t2_yf,t2.[yldjbhyf] as t2_yldjbhyf,SELECT year(rksj) as 年 FROM uf_gfht as cus_年年 from uf_gfht t1 INNER join uf_gfht_dt1 t2 on t1.id = t2.mainid) tmp1错在哪里

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